So me and another member of my clan decided to go on Team Deathmatch, we checked how much clan XP we needed to reach rank 10 (2340XP). We played the game and won. We checked back after the game and we hadn't earned any XP.

How much XP are you meant to earn, if any? And what is the best/fastest way to rank up the clan because we only seem to rank up when there is a clan war on. Thanks.

Standard multiplayer each member earns 50xp per win and 10xp per loss, it also takes time for this to update on clan page - it's not done instantly. If you can get 4 members together clan v clan gives 100xp per win each and I think it's 20xp per loss each. Check number 9 out on this thread

Correct the link I provided did not list Xp the op had also asked on the fastes t method to gain clan Xp and that is why I included that.... As far as wearing your clan tag no you do not have to wear it to gain clan Xp . You simply have to play with another member of your clan on your team in public multiplayer matches.